portal-api/app/Mail/IpAllocationMail.php

<?php

namespace App\Mail;

use App\Mail\Concerns\AttachesStoredFiles;
use App\Models\IpPool;
use App\Support\EmailTemplateShell;
use Carbon\Carbon;
use Illuminate\Mail\Mailables\Envelope;
use Illuminate\Bus\Queueable;

class IpAllocationMail extends TemplateMailable
{
    use Queueable, AttachesStoredFiles;

    public const ALLOCATED = 'ip_allocated';
    public const REVOKED = 'ip_revoked';

    private const CELL = "padding: 13px 14px; font-size: 15px; text-align: center; font-family: 'Times New Roman', Times, serif; color: #2b2b2b;";

    private const HEAD_CELL = "padding: 11px 14px; color: #c2410c; font-size: 13px; font-weight: bold; letter-spacing: .4px; border-bottom: 1px solid #f6d2b8; background: #fff5ee; text-align: center; font-family: 'Times New Roman', Times, serif;";

    /**
     * @param  array<int, array{ip_address: string, cidr: ?int, gateway: ?string, service_name: ?string}>  $ips
     */
    public function __construct(
        public readonly string $type,
        public readonly string $clientName,
        public readonly array $ips,
        public readonly string $date,
        public readonly ?string $note = null,
        public readonly ?string $subjectOverride = null,
        public readonly array $storedFiles = [],
    ) {}

    /**
     * @param  iterable<int, IpPool>  $pools
     * @return array<int, array{ip_address: string, cidr: ?int, gateway: ?string, service_name: ?string}>
     */
    public static function ipsFrom(iterable $pools): array
    {
        return collect($pools)
            ->map(fn (IpPool $pool) => $pool->only(['ip_address', 'cidr', 'gateway', 'service_name']))
            ->values()
            ->all();
    }

    public function attachments(): array
    {
        return $this->storedFileAttachments($this->storedFiles);
    }

    public function envelope(): Envelope
    {
        $envelope = parent::envelope();
        if (filled($this->subjectOverride)) {
            $envelope->subject = trim($this->subjectOverride);
        }

        return $envelope;
    }

    protected function scenario(): string
    {
        return $this->type;
    }

    protected function variables(): array
    {
        $carbon = Carbon::parse($this->date);
        $date = $carbon->format('d/m/Y');

        return [
            'client_name'   => $this->clientName,
            'ip_count'      => (string) count($this->ips),
            'ip_rows'       => collect($this->ips)->map(fn (array $ip) => EmailTemplateShell::row(
                e($ip['ip_address']),
                e(implode(' · ', array_filter([
                    $ip['cidr'] ? '/' . $ip['cidr'] : null,
                    $ip['gateway'] ? 'Gateway ' . $ip['gateway'] : null,
                ])) ?: '—'),
            ))->implode(''),
            'ip_table'      => $this->ipTable($date),
            'issued_on'     => "ngày {$carbon->day} tháng {$carbon->month} năm {$carbon->year}",
            'allocated_at'  => $date,
            'revoked_at'    => $date,
            'note_block'    => $this->note ? EmailTemplateShell::note(nl2br(e($this->note)), 'Ghi chú:') : '',
        ];
    }

    private function ipTable(string $date): string
    {
        $last = count($this->ips) - 1;
        $rows = collect($this->ips)->values()->map(function (array $ip, int $index) use ($date, $last) {
            $border = $index === $last ? '' : ' border-bottom: 1px solid #f6d2b8;';
            $cell = fn (string $value, string $extra = '') => '<td style="' . self::CELL . $border . $extra . '">' . $value . '</td>';

            return '<tr>'
                . $cell((string) ($index + 1), ' width: 60px;')
                . $cell(e($ip['ip_address']), " font-family: Consolas, 'Courier New', monospace; font-weight: bold; color: #c2410c;")
                . $cell(e($ip['service_name'] ?: '—'))
                . $cell($date)
                . '</tr>';
        })->implode('');

        $head = collect(['STT', 'IP Address', 'Dịch vụ', 'Ngày cấp phát'])
            ->map(fn (string $title) => '<td style="' . self::HEAD_CELL . '">' . $title . '</td>')
            ->implode('');

        return '<table style="border: 1px solid #f6d2b8; border-radius: 10px; border-collapse: separate; overflow: hidden;" role="presentation" width="100%" cellspacing="0" cellpadding="0"><tbody>'
            . '<tr>' . $head . '</tr>' . $rows
            . '</tbody></table>';
    }
}